Cell and atoms, Electronic energy gap

• C-H-N-O
• O-Si
• Al-H-Na-O-Si
• C-H-N
• H-N-O-P
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• transitional
• chalcogen
• non-disordered
• disordered
• orthorhombic
• monoclinic
• cubic
• tetragonal
• hexagonal